If wtp_connect() fails, that means most of the time that the device has been disconnected. Subsequent attempts to contact the device will fail too, so it's simpler to bail out earlier.
Signed-off-by: Benjamin Tissoires <[email protected]> --- drivers/hid/hid-logitech-hidpp.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index d008d71..c0fb5fe 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -914,24 +914,24 @@ static int wtp_allocate(struct hid_device *hdev, const struct hid_device_id *id) return 0; }; -static void wtp_connect(struct hid_device *hdev, bool connected) +static int wtp_connect(struct hid_device *hdev, bool connected) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); struct wtp_data *wd = hidpp->private_data; int ret; if (!connected) - return; + return 0; if (!wd->x_size) { ret = wtp_get_config(hidpp); if (ret) { hid_err(hdev, "Can not get wtp config: %d\n", ret); - return; + return ret; } } - hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index, + return hidpp_touchpad_set_raw_report_state(hidpp, wd->mt_feature_index, true, true); } @@ -1115,8 +1115,11 @@ static void hidpp_connect_event(struct hidpp_device *hidpp) struct input_dev *input; char *name, *devm_name; - if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) - wtp_connect(hdev, connected); + if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) { + ret = wtp_connect(hdev, connected); + if (ret) + return; + } if (!connected || hidpp->delayed_input) return; -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
